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2013年在位于山东省胶州市的青岛农业大学试验田中,应用3种不同材质地膜(分别为普通白膜、黑色地膜、生物可降解地膜)覆盖种植花生,对其产量及土壤中增塑剂含量进行研究。产量结果表明,普通白膜处理>生物可降解地膜处理>黑色地膜处理,与普通白膜相比,黑色地膜、生物可降解地膜处理花生产量分别减少17%、9%;通过气相色谱测定土壤中6种美国国家环保署(EPA)优控增塑剂的总含量,生物可降解地膜处理最高,黑色地膜处理次之,白色地膜处理最少,差异明显,其中DMP、DEHP、BBP在生物可降解地膜覆盖土壤中含量最高,表明生物可降解地膜的使用存在一定的环境风险。3种地膜覆盖土壤中DEP、DMP、DBP含量均已超过美国土壤污染物控制标准。
In 2013, in the experimental field of Qingdao Agricultural University in Jiaozhou, Shandong Province, the peanut was covered with three kinds of mulch film (common white film, black mulch film and biodegradable mulch film, respectively), and their yield and plasticizer content research. The results showed that the production of black film and biodegradable mulching film decreased by 17% and 9%, respectively. Compared with common white film, the average white film treatment> biodegradable film treatment> black film treatment decreased the yield of peanut by the method of gas chromatography The total content of excellent plasticizer controlled by EPA, the highest biodegradable plastic film, the second is black plastic film, the least is white plastic film, the difference is obvious. Among them, DMP, DEHP and BBP are superior to biodegradable plastic film Cover the highest content of soil, indicating that the use of biodegradable film there is a certain amount of environmental risks. The contents of DEP, DMP and DBP in the three kinds of plastic film soils have exceeded the control standards of soil pollutants in the United States.